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//
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// modification, are permitted provided that the following conditions are
// met:
//
//    * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//    * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
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// this software without specific prior written permission.
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#include "config.h"

#if ENABLE(SVG)
#include "GraphicsContext.h"
#include "ImageBuffer.h"
#include "RenderObject.h"
#include "SVGPatternElement.h"
#include "SVGPaintServerPattern.h"
#include "SkiaSupport.h"

#include "SkShader.h"
#include "SkiaUtils.h"

namespace WebCore {

bool SVGPaintServerPattern::setup(GraphicsContext*& context, const RenderObject* object, SVGPaintTargetType type, bool isPaintingText) const
{
    RenderStyle* style = object->style();

    // Build pattern tile, passing destination object bounding box
    FloatRect targetRect;
    if (isPaintingText) {
        IntRect textBoundary = const_cast<RenderObject*>(object)->absoluteBoundingBoxRect();
        targetRect = object->absoluteTransform().inverse().mapRect(textBoundary);
    } else
        targetRect = object->relativeBBox(false);

    m_ownerElement->buildPattern(targetRect);

    if (!tile())
        return false;

    SkShader* shader = SkShader::CreateBitmapShader(*tile()->image(), SkShader::kRepeat_TileMode, SkShader::kRepeat_TileMode);

    SkMatrix matrix = patternTransform();
    matrix.preTranslate(patternBoundaries().x(), patternBoundaries().y());

    shader->setLocalMatrix(matrix);
    context->platformContext()->setPattern(shader);

    if ((type & ApplyToFillTargetType) && style->svgStyle()->hasFill()) {
        if (isPaintingText) 
            context->setTextDrawingMode(cTextFill);
    }

    if ((type & ApplyToStrokeTargetType) && style->svgStyle()->hasStroke()) {
        applyStrokeStyleToContext(context, style, object);
        if (isPaintingText) 
            context->setTextDrawingMode(cTextStroke);
    }

    return true;
}

} // namespace WebCore

#endif
